Formula: Pb2(CrO4)O
Origin of name: from Greek for deep red and colour
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: red
Diaphaneity: transparent to translucent
Luster: resinous or adamantine
Habit: large polycrystalline masses, anhedral cleavable masses
Hardness: 2.5
Specific gravity: 7.01
Cleavage: 4; {-201} good, {001}, {010} and {011} fair
Tenacity:
Streak: yellowish orange
Synonyms/varieties:
Comments:
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